The Keswick River is a stream flowing through New Brunswick, Canada, offering anglers a classic Maritime brook trout experience in a natural, lightly pressured setting. The river features gravelly riffles and shaded pools that create ideal habitat for brook trout, with suitable spawning gravel estimated at approximately 78,000 square yards distributed across the main stem and its tributaries. The lower and middle sections of the river are accessible near the community of Zealand, making it a manageable destination for wade fishing enthusiasts.